新型跨临界CO2循环冷热电联供系统分析
Analysis of a novel trans-critical CO2 cycle Combined Cooling, Heating and Power system
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- 引用格式:
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胡志明,阙燚,王海波.新型跨临界CO2循环冷热电联供系统分析[J].天然气与石油,2023,41(6):135-141.doi:10.3969/j.issn.1006-5539.2023.06.019
HU Zhiming, QUE Yi, WANG Haibo.Analysis of a novel trans-critical CO2 cycle Combined Cooling, Heating and Power system[J].Natural Gas and Oil,2023,41(6):135-141.doi:10.3969/j.issn.1006-5539.2023.06.019
- DOI:
- 10.3969/j.issn.1006-5539.2023.06.019
- 作者:
- 胡志明 阙燚 王海波
HU Zhiming, QUE Yi, WANG Haibo
- 作者单位:
- 中国石油工程建设有限公司西南分公司, 四川 成都 610041
CPECC Southwest Company, Chengdu, Sichuan, 610041, China
- 关键词:
- 冷热电联供;跨临界CO2;净功输出
CCHP; Trans-critical CO2; Net power output
- 摘要:
冷热电联供系统(以下简称联供系统)具有较高的能量转换效率,在中低温余热的利用方面具有显著优势。提出了一种由朗肯循环和喷射式制冷循环组成的新型跨临界CO2循环联供系统,并对其热力学性能进行分析。以同时产生最大净输出功和制冷量(Combined Cooling Power,CCP)模式或同时产生最大净输出功和供热量(Combined Heating Power,CHP)模式作为目标函数,对联供系统进行优化。结果表明:在研究的参数范围内,联供系统具有较理想的净功输出,实现了制冷量和供热量的可调性。研究成果对中低温余热的利用具有借鉴意义。
The Combined Cooling Heating and Power(CCHP) system boasts high energy conversion efficiency and exhibits clear advantages in harnessing medium to low temperature heat sources. In our study, we propose a Trans-Critical CO2 CCHP system composed of a Rankine cycle and an Ejector Refrigeration cycle, and analyze the thermodynamic performance of this CCHP system. The system is optimized based on the objective functions of maximum net output power and cooling capacity(in CCP mode), or maximum net output power and heating capacity(in CHP mode). Our findings indicate that within the range of the studied parameters, the system has an optimal net power output, and its cooling and heating capacities can be adjusted. These results carry great significance for the utilization of waste heat at medium to low temperatures.
